ABSTRACT
RESUMEN Introducción: el cáncer de laringe se diagnostica con mayor incidencia en estadio temprano, representa la segunda causa más común de las neoplasias malignas del tracto respiratorio después del pulmón, por lo que es de vital importancia el diagnóstico y tratamiento eficaz para reducir la morbimortalidad. Objetivo: describir los resultados obtenidos en el manejo de pacientes con cáncer de laringe en estadios tempranos. Métodos: se realizó un estudio descriptivo retrospectivo en el Instituto Nacional de Oncología y Radiobiología, del primero de enero del 2005 al 31 de diciembre del 2009. La población de estudio estuvo constituida por todos los pacientes con carcinoma de células escamosas de laringe en estadio temprano. Se recogió toda la información de las historias clínicas y los resultados se plasmaron en la planilla recopiladora de datos. Resultados: se constató en la serie estudiada predominio del sexo masculino en un (86.5%) y el grupo etario de 60 años (64,5 %) y más Se encontró que más de la mitad de los casos tenían antecedentes de tabaquismo y alcoholismo (71,3 %). La disfonía fue el principal motivo de consulta (96,8 %). El sitio anatómico más afectado fue la Glotis (87,6 %) y predominó la variedad histológica bien diferenciado con 58,2 %. Estaban en etapa I el 61,4 %. El 78,5 % de los pacientes recibieron radioterapia como modalidad única. Conclusiones: las variables sociodemográficas y terapéuticas de los pacientes de esta serie son semejantes a las reportadas por otros autores. Al compararlo tanto con series nacionales e internacionales.
ABSTRACT Introduction: laryngeal cancer is diagnosed with the highest incidence at an early stage, it represents the second most common cause of malignant neoplasms of the respiratory tract after lung cancer, its diagnosis and effective treatment to reduce morbidity and mortality is of vital importance. Objective: to describe the results obtained in the management of patients with laryngeal cancer in early stages. Methods: a retrospective, descriptive study was conducted at the National Institute of Oncology and Radiobiology, from January 1, 2005 to December 31, 2009. The study population consisted of all patients with early-stage squamous cell carcinoma of the larynx. All clinical history information was collected and the results were recorded on the data collection sheet. Results: male gender predominance was found in the series studied (86,5 %) and the age group of 60 years (64,5 %) and older. It was found that more than half of the cases had a history of smoking and alcoholism (71,3 %). Dysphonia was the main reason for consultation (96,8 %). The most affected anatomical site was the glottis (87.6 %) and the well-differentiated histological variety predominated with 58,2 %. Stage-I was 61,4 %. 78,5 % of the patients received radiotherapy as the only modality. Conclusions: the socio-demographic and therapeutic variables of the patients in this series are similar to those reported by other authors. When comparing it with national and international series.
ABSTRACT
Objective To explore the effects of bacailin on the angiogenic regulating factor and migration activity of laryngeal cancer cells.Methods Hep-2 was cultured in vitro,(1)in the groups adding phorbol ester,gelatin-zymogram and Transwell assay were used to observe the effects of bacailin on the gelatinase activity of matrix metalloproteinase (MMP) and the migration ability of Hep-2,respectively; (2)in the group without phorbol ester,enzyme-linked immunosorbent assay (ELISA) was used to detect the effects of bacailin on the protein level of endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF).Results Among the control group,the low-dose group,the middle-dose group,and the high-dose group,the activity of MMP-3 of each corresponding group was (100.0 ±0.0) ％,(95.0 ±4.9) ％,(93.1± 6.2)％,and (90.7 ± 7.3)％ with statistically significant difference (t =2.123,2.309,2.412,P ＜0.05) ; the activity of MMP-9 of each corresponding group was (100.0 ± 0.0) ％,(92.3 ± 7.5) ％,(89.5 ± 9.3) ％,and (85.6 ± 6.1) ％ with statistically significant difference (t =2.253,2.302,3.708,P ＜0.05 or P ＜0.01) ;the protein level of VEGF of each corresponding group was (242.7 ±9.5)ng/L,(230.6 ± 12.7)ng/L,(212.1 ± 15.9)ng/L,and (184.2 ± 23.5)ng/L with statistically significant difference (t =2.408,3.733,4.146,P ＜0.05 or P ＜0.01) ; the protein level of bFGF of each corresponding group was (190.7±8.2) ng/L,(181.2±13.0) ng/L,(169.9±17.3)ng/L,and (140.7±9.2)ng/Lwith statistically significant difference (t =2.330,2.922,5.145,P ＜0.05 or P ＜0.01) ; Cellular migration rate of each corresponding group was (38.3 ± 5.6) ％,(32.9 ± 7.1) ％,(27.9 ± 4.4) ％,and (23.3 ± 6.0) ％ with statistically significant difference (t =2.141,3.365,4.027,P ＜ 0.05 or P ＜0.01).Conclusions Bacailin could suppress the migration of Hep-2 through inhibiting expression of angiogenic regulating factor,which might has clinical value in the treatment of laryngeal cancer.
ABSTRACT
Objective To study the anti-proliferation and apoptosis induction effect of cisplatin combined with Astragalus on human laryngeal cancer Hep-2 cells.Methods The proliferation inhibition of cisplatin and Astragalus alone or in combination on Laryngeal cancer Hep-2cells was measured by MTT assay.Effects of cisplatin and Astragalus alone or in combination on apoptosis of Hep-2 cells were detected by flow cytometry (FCM).Western blot was used to analyze the expressions of Bcl-2 and Bax proteins.Results The inhibition ratio of proliferation of Hep-2 cells was (53.83 ± 17.12) ％ in the astragalus group,(69.12 ± 27.12)％ in the cisplatin group,and (84.55 ± 27.84)％ in the cisplatin combined with Astragalus group,and was significantly greater than the control group (0％) (t =16.87,16.67,40.90,P ＜0.01),respectively.The apoptotic ratio of Hep-2 cells was (38.2 ± 13.6)％ in the astragalus group,(67.2 ± 17.8)％ in the cisplatin group,and (86.4 ± 25.1)％] in the cisplatin combined with Astragalus group,and was significantly greater than control group (17.1 ± 1.3) ％ (t =8.11,12.77,24.92,P ＜0.05),respectively.The effect in the combination group is better than the other group (t =11.33,9.37,P ＜ 0.01).The expressions of Bcl-2 and Bax proteins were changed.Conclusions The tumor-killing effect of cisplatin on laryngeal cancer Hep-2 cells could be enhanced significantly by the combination application of astragalus by the way of regulating the expression of Bcl-2/Bax.